Have used this product a few years before this year.Got away from it for 2 years because of availability and never was in a gallon unless by an internet order.. Went back this year because it is much better on Crabgrass than the others I used.Works great on almost all weeds.TSC has the gallons..

I bought a gallon of the Trimec Crabgrass killer and began to spot spray the crabgrass in my lawn which is zoysia and beautiful if the weedy carbgrass wasn't there. The Trimec turns the crabgrass yellow for a few weeks, but it always comes back stronger than ever. If you used too much of the solution, it will kill all grasses. I don't know how to get rid of crabgrass without using ROUNDUP. I have used the preventers in late winter and early spring, but haven't had any luck with them either. Once the crabgrass goes to seed which it will do every week between mowings, you'll have 100's of seeds on each antenna shoot. I have used the entire gallon of Trimec and have more crabgrass than ever before. TROUBLED!!!